o_str.c

/* crypto/o_str.c -*- mode:C; c-file-style: "eay" -*- *//* Written by Richard Levitte (richard@levitte.org) for the OpenSSL * project 2003. *//* ==================================================================== * Copyright (c) 2003 The OpenSSL Project. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. All advertising materials mentioning features or use of this * software must display the following acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" * * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please contact * openssl-core@openssl.org. * * 5. Products derived from this software may not be called "OpenSSL" * nor may "OpenSSL" appear in their names without prior written * permission of the OpenSSL Project. * * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit (http://www.openssl.org/)" * * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. * ==================================================================== * * This product includes cryptographic software written by Eric Young * (eay@cryptsoft.com). This product includes software written by Tim * Hudson (tjh@cryptsoft.com). * */#include <ctype.h>#include <e_os.h>#include "o_str.h"#if !defined(OPENSSL_IMPLEMENTS_strncasecmp) && \ !defined(OPENSSL_SYSNAME_WIN32) && \ !defined(NETWARE_CLIB)# include <strings.h>#endifint OPENSSL_strncasecmp(constchar *str1, constchar *str2, size_t n)
{
#if defined(OPENSSL_IMPLEMENTS_strncasecmp)while (*str1 && *str2 && n)
{
int res = toupper(*str1) - toupper(*str2);
if (res) return res < 0 ? -1 : 1;
str1++;
str2++;
n--;
}
if (n == 0)
return 0;
if (*str1)
return 1;
if (*str2)
return -1;
return 0;
#else/* Recursion hazard warning! Whenever strncasecmp is #defined as * OPENSSL_strncasecmp, OPENSSL_IMPLEMENTS_strncasecmp must be * defined as well. */return strncasecmp(str1, str2, n);
#endif }
int OPENSSL_strcasecmp(constchar *str1, constchar *str2)
{
#if defined(OPENSSL_IMPLEMENTS_strncasecmp)return OPENSSL_strncasecmp(str1, str2, (size_t)-1);
#elsereturn strcasecmp(str1, str2);
#endif }
int OPENSSL_memcmp(constvoid *v1,constvoid *v2,size_t n)
{
constunsignedchar *c1=v1,*c2=v2;
int ret=0;
while(n && (ret=*c1-*c2)==0) n--,c1++,c2++;
return ret;
}